Paper-rolling machine



Sept. 15, 1931. H. ANDERSSON 1,823,581

PAPER ROLLING MACHINE Filed March 18. 1929 2 Sheets-Shet 1 I van Zar:

l lajm-zr fin er-550w YSept. 15, 1931. H. ANDERSSQN 1,823,581

PAPER ROLLING MACHINE Filed March 1a, 1929 a Sheets-Sheet 2 Lye-r11 6? -z-zmer finzerssan/ Patented Sept. 15, .1931

UNITEDVSTAITVES PATENT OFFICE v HJALMAR nivnnnss on,

or LIrrAN, SWEDEN PAPER-ROLLING MACHINE Application of this kind, however, present some draw backs, and it is the object of the present invention to do away with the same; The said drawbacks are primarily tobe found in the fact that the belts used for the rolling, in

the known machines, run at one end over a common drum and form an obtuse anglein relation to each other at the working chamher. In this way it is impossible to'obtain a compact rolling of the paper without any substantial hollow centre portion, and the rolls must be removed manually'from the machine. I

belt members such members forming between them a wedge-shaped working chamber, but the esdifierenceisthat the belts run over form The sential difierent and independent drums and an acute angle at the working chamber! advantages gained thereby are, that the belts may be run at different speedsso that the compactness of the rolls may be adjusted acplan view of the same. Fig. 3 is a cross'seccording to the'resisting power of the material to be rolled without forming hollow centre portions in the rolls, that the belts them- I of suitable kind, carrying a suitable number of supporting, tensioning and guiding drums selves are entirely sufficient for carrying out the rolling without using any other auxiliary 10 means, and that the working chamber may be provided with an opening between the belts so that the rolls may be automatically fed through said opening according to the ratio of production.

working chamber is improvements, which are not comparable According to my present invention endless are also p used for the rolling,-

is concerned, cannot be obtained.

Further, according to my invention one belt 1 filed March 18, 1929, Se1i a1 No.. 347,994, and in Sweden April 21, 1928.

is displaceable. in relation to the other, and e the working chamber is positioned at such an;

inclination to "the horizontal that the completed rolls, at the displacement of the firstanentioned belt, will fall down by gravity an through the open end of the working chamber, preferably on a collecting table placed underneath said chamber. Due to these main differences fro-in the known machines the invention forms asheet rolling machine which may be mounted directly in connection with the fast-running crepe machines of modern type, whereby the rolling may be performed directly'as the paper leaves the crepe machine and without a pre-rollingof the same, as has heretofore beenn'eeded.

The invention, for obtaining the results desired, includes also various other valuable with any corresponding means in the ma 1 chines previously known, such other improvemerits being more fully described herein after. Among the said improvements the construction described in the following and designed to obtain, by means of'repeated end thrusts, an even" end surface of the rolls, is especially to be mentioned,'without which a satisfactory product, as far as crepe paper The invention is described with reference 7 to the accompanying diagrammatic drawings, in which Fig. 1 shows an elevation of the complete rolling machine, and Fig. 2 :1

tion of the machine.

The machinelconsists of a main frame 1 2 or the like for a conveyor belt 3 consisting for instance of felt or the like mater1al hav-'; ing a surface offering a certainjamount of friction. This belt might be replaced by a plurality of parallel and narrower belt strips h mounted-on the same drums in" spaced rela 1 tion. The belt member 8 is driven in the direction of the arrow P in Fig. l and provides a substantially horizontal upper part for feeding the paper to be rolled. At the working end of the machine (the right end in the drawings) the belt member 3 runs in adownward inclination around the driving drum 4, and thence to the charging end of the machine.

A frame 6 is tiltably mounted on a shaft 5 in the main frame 1, such frame, by means of suitable supporting, tensioning and gui-ding drums T-czirrying'another belt member 8 (Fig. 1) of the kind any other suitable kind. The belt member 7 8 runs around a driving drum 9 mountedon -which latter, of course,

the shaft 5 on which the frame 6 is tiltably mounted, and the drum 9 drives the belt in the direction of the arrow P preferably at a little greater speed than the belt member 3.

The part of the belt'member 8 facing the,

belt member 3, running in opposition to the latter, is positioned at an acute angle to the end portion of the belt member 3, said angle pointing downwardly so that a wedgeshaped working chamber is formed between the belts,

which chamber can be opened-at its lower end by tilting the frame 6 around the shaft.

5. 7 At the driving drum 9 the belt member .8 extends a little further down than the belt member 3, and thus it also forms a guiding member for the rolls falling down through the open end of the working chamber, so that said rolls are collected on the table 10, can be replaced by a conveyor belt of suitable kindadap-ted for automatically removing the rolls from the machine, if such an arrangement'should. be preferred, but otherwise the completed rolls collecting table.

The manner of is as follows fl The continuous sheet of paper 11 entering the machine from the left as indicated in Fig. 1 is fed in upon the. upper horizontal part of working of the machine the belt member 3 and follows the latter to the working chamber, through which it is carried in contactwith the belt member 8, whereafter both of the performing therolling action. When the roll has been completed, the frame 6 is tilted, so that the belt members are removed from each other, whereupon the roll falls down on the collecting table 10. It is to be noted, however, that for a perfect functioning the machine must be completed by a number of devices to be described in the following.

For many reasons, independent of the invention but advantageous for commercial effects, the crepe paper is not only rolled but,

also folded to a. smaller or greater extent before the rolling, and for such purpose the ma chine is provided with folding means. This :means consists of a gripping'member 12 referred to above or of the same kind as used at the knot belt members coact in adapted for gripping the forward edge of the paper at the entrance of the machine when said edge arrives at a transverse bar 13, against which the paper is pressed by means of gripper 12, so that the folding is effected by the continued advance of the paper heneath the means just described. The action of the gripper 12 is controlled by means of a. cam disc 1 1 and a return spring 15. When the paper edge enters the machine the gripper is resting and sliding on the surface of the belt member 8, and when the edge arrives at said gripper it is lifted by the latter into contact,

a sheet is rolled while folding the next one.

During the feeding movement of the paper on the belt member in transverse direction by means of guide plates 16 which are adjustably mounted to fit the width of the paper to be rolled. These guiding plates are extended to the working chamber between the belt members in a manner to be understood from Fig. 1. In order to give the rolls even end surfaces the guiding platesat the workingchamber are given a shaking or vibratory movement by means of oscillating devices 17 (Fig; 2) substantially separators in paper machines. These oscillating d 3 the paper is guided vices are preferably adjustable so that the strength of the vibratory movement can be varied according to requirements. may be manualli removed in bulk from the A rockable tensioning and braking bar 18 is mounted in connection with the belt member'3 and rests fiat on the latter so that the vpaper can pass over the upper side of the same. This bar is tilted up into the position shown in dot and dash lines in Fig.1 when, for instance, one third of the length of paper to be rolled has passed overthe same, and

vwhen the rest passes over the bar, it will have preferably combinedwith at least one'of the belt members.

Another transverse bar 19 is positioned at the upper part'of theworking chamber and has a somewhat similar action, said bar being adapted to press the paper weakly down against the belt-member 3 when the end of belt members 3 and r the paper leaves the retarding bar 1 8fde-i By means offa'cam discI-20 and a return spring 21 the bar, 19 is lowered into contactwith the paperrwhenabout one has been rolled, and then the bar takes'the position shown scribed above.

half of the length of the same ment is effected by means of a rotatable disc '22 having a pin or promotion 40 coacting with the circumference of a cam disc 23 controlled by'a'return spring 41' which causes an oscillatory rotation of theformer. By means of a wire 24 fastened thereto, the disc 22 is connected with a pivot and connected by means of a link 26, near the end of the latter, by a pin 42 to the frame 6, so that said frame will be tilted by the periodical tension appearing in the wire 24. A device of ranged at each side of the main frame, and the wire 24 is preferably providedwith a turnbuckle 27 or the like for variation of the length of the same, according to the greater or smaller opening of the working At both sides the frame abutments'28 which, for

chamber desired. 6 is provided with the purpose of controlling the tilting move-o ments of the frame, coact with adjustable stop members 29 limiting themovement- 1n the closing direction and resilient, stop members 3O limiting the movement in the open-f adjustment ,of the stop members 29 the angle of inclination between ing direction. By the belt members at the working-chamber may be varied, and the resilient action of the stop members 30 will cause a recoil adapted to accelerate the closing movement. The shaft 5 forming a pivot for the frame 6 is mounted in bearings which are adjustable substantially in horizontal direction, so that the distance between the belt members at the working chamber may be varied.

The supporting, tensioning and guiding drums 2 and 7 respectively arealso mounted in adjustable bearings, so that the belt'members may be controlled substantially in the belts in a paper-making same manner as the machine. I

As the paper 11 at the entrance of the machine does not always take the same posi'-- tion in transverse direction, the whole ma ohine is preferably made'adjustable in saiddirection. For suchpurpose the main frame 1 is supported by transverse. guides 31, relation to the frame and having an inclined portion disposed opposite and at an acute for instance, employed on the shaft 5 and the driving'drum 9; for

dot and dash lines so as to permit lever 25 having a fixed v 1n and having a this-kind is preferably ar the belt member 8. By means of a chain and sprocket connection 34 the rotation is transmitted between the drums 9 and 4:. The vibration device 17 is driven by means of a chain and sprocket connection 35 from the shaft of the drum 4. The gripper 12, the tensioning and retarding bars 18, 19 and the tilting means for the frame 6 are driven from a shaft 36.

It is tobe distinctly understood that the invention is not limited to the particulars described above forthe'sake of explanation, and most of them may be substituted by equivalents acting substantially in the same manner as described without departing from the principleofqinvention.

ters, Patent.is;- V

, 11 In sheet-rolling machine, amain frame; an endless main belt mounted theredownwardly-inclined portion; an auxiliary frame tiltably mounted in the "main frame; an "endless auxiliary belt carried the tiltable frame to tilt therewith and having an inclined portion disposedopposite and at an acute angle to the inclined portion of the main belt and cooperating withthe same'to form a downwardly-pointing, wedge-shaped working chamber, to receive rolled sheets from said main belt, said chamber being substantially closed at its lower'end; independent supporting and driv- ';ing means for eachbelt; and means for tiltthe auxiliary frame and belt relatively tothe m'ain belt ina direction to open said chamberl'end and discharge a rolled sheet ,therethrough.

2; In a sheet-rolling machine, a main frame; an endless mam belt mounted therein and having a downwardly-inclinedV portion an auxiliary main frame; an endless auxiliary belt carried by-the tiltable frame to tilt therewith and having an inclined portion disposed oppo site and at an acute angle to the inclined portion of the main belt and cooperating with the same t-o-fornr a downwardly pointing, v wedge-shaped work ng chamber to receive rolled sheets from said main belt, said chamber being substantially closed at its lower end; independent supporting and driving means for each belt; and means for automatically tilting the auxiliary frame and belt relatively to the main belt at regular intervalsin a direction to open said chamber end 'and discharge a roller sheet therethrough.

31 In a sheet-rolling machine, a frame an endless main belt mounted therein and hav ing a downwardly-inclined portion; an endless auxiliary belt tiltably supported with angle to the inclined portion of the main belt 7 and cooperating with the same to form a downwardly-pointing, wedge-shaped work- VVhatI claim and desire to secure by Let- I frame tilta-bly mounted in the ing chamber to receive roller sheets from said main belt, said chamber being substantially closed at its lower end; independentsupporting and driving means for each belt;'and 5 means for tilting the auxiliary belt bodily away from the inclined portion of the main belt so as to open the closed end of the chamher and thereby discharge a rolled sheet I therethrough. 7 10 l. A machine according to claim 3, in which the main frame embodies two side members arranged opposite each other in spaced relation; means being'provided for moving one member bodily toward or from the other, to adjust the width of the frame.

5. In a sheet-rolling machine,-two endless, 'continuously-running belts having definite portions thereof arranged opposite "each other at an acute angle and coacting to form 2 a downwardly-pointing, wedge-shaped working chamber which is subsantially closed at its lower end, said chamber adapted to receive rolled sheets from one of the belts; independent supporting and driving means for each belt; and means for rocking the other belt bodily in a direction to move its inclined portion away from that of the first belt, thereby to open the closed end of the chamber and discharge a rolled sheet therethrough. 1i

6. A machine according to claim 5, in which adevice is additionally provided for actuating the belt-rocking'means automatically at regular intervals. V machine according to claim 5, in which a device is additionally provided for actuating the belt-rocking means automatically at regular intervals; such device embodying, in combination with a tiltable dt'rame carrying the rocking belt and a lever said frame, a rotary cam,

driving means therefor, a rotary member operated by said cam, and a flexible connection 7 between the rotary member and the lever system.

system connected to 8. A nachine according to claim 5, in"

which a device is additionally provided for adjusting the smallest angle between the belts p at the working chamber. 9.'A machine according to claim 5, in

which resilient means are additionally provided for limiting the extent of movement of the rocking belt and for adjustingthe I angles between the belts. l0. In a sheet-rolling machine, two'endless, coninuously-running belts having definite, downwardly-inclined portions thereof disposed opposite each other at an acute angle and eoacting to form a wedge-shaped working chamber substantially closed at its lower end to receiverolled sheets from one of the belts, the other belt extending below said chamber; independent driving and supporting means for shifting said other belt laterally away from chamber to receive rolled the two belts; and means for receiving end supported in substantially horizontal position, and the portion thereof nearest its delivery end supported in downwardly-inclined position; a folding gripper pivotallymounted above the horizontal portionof the belt" and normally occupying a lowered position in which the sheet may pass over it; i

a clamping bar cooperative with the grip: per meansfor periodically raising the gripper to clamp the sheet" against said bar and subsequently releasing it; asecond endless belt having an inclined portion arranged opposite the inclined portion of the first belt and coact-ing with the same to form a wardly-pointed, wedgeshaped working sheets from the first belt, which chamber is substantially closed at its lower end; the second belt being mounted to swing laterally away from the inclined portion of the first-named beltso as to provide an interspace between the belts at the lower end of the chamber; guiding means for the sheet material adjustable in a direction transverse to the direction of feed of said material; similar at the sides for imparting a vibratory movement to the last-named guiding means; and independent supporting and driving means for each belt.

12. A sheet-rolling machine according to claim 10, in which tensioniug and braking means located'adjacent the working chamber and adapted toexert a retarding action on the sheet material entering said chamber, are additionally provided. 7

13. A sheet-rolling machine according to claim 10, in which tensioning and braking means locatedadjacent the working chamber and adapted to exert a retarding action on the sheet'material entering said chamber are additionally provided; such tensioning and. braking means embodying a tiltable bar movable into and out of substantially vertical position,and operating means for said bar.

14. In a sheet-rolling machine, two endless, continuously-running belts having definite portions thereof arranged opposite each other at an acute angle downwardly-pointing, wedge-shaped working chamber which is substantially closed at its lower end, said chamber adapted to receive rolled sheets from one of the belts; in-

guiding means positioned of the working chamber; means and coacting to form a dependentsupporting and-driving means for each belt; means for rocking theother belt bodily in a direction to move its inclined portion away from that of the first belt, thereby to open the closed end 'ofthe chamber and discharge a rolled sheet therethrough; and a pair of bars for exerting a retarding action on the sheet material, one loc ated somewhat in advance of the Working chamber, and the other at the upper first bar being in stantially Vertic bar being adapted against the first-name the first bar.

In testimony name to this spe HJ ALMAR ANDERSSON. 

